使用15兆赫超声微型探头对黏膜下浸润性结直肠癌进行术前评估。
Preoperative evaluation of submucosal invasive colorectal cancer using a 15-MHz ultrasound miniprobe.
作者信息
Harada N, Hamada S, Kubo H, Oda S, Chijiiwa Y, Kabemura T, Maruoka A, Akahoshi K, Yao T, Nawata H
机构信息
Dept. of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
出版信息
Endoscopy. 2001 Mar;33(3):237-40. doi: 10.1055/s-2001-12798.
BACKGROUND AND STUDY AIMS
Recently, it was reported that focal submucosal invasive colorectal cancer could be treated by polypectomy or endoscopic mucosal resection (EMR) because of the rarity of lymph-node metastasis. Our objective was to examine the accuracy and efficacy of a 15-MHz ultrasound miniprobe in the preoperative evaluation of the degree of submucosal invasion in colorectal cancer.
PATIENTS AND METHODS
A total of 35 patients with submucosal invasive colorectal cancer who underwent ultrasonography with a miniprobe were studied prospectively. The results of this imaging were compared with the histologic findings in resected specimens.
RESULTS
Although the accuracy of the miniprobe in categorizing submucosal invasion into three subclasses (SM1, invasion limited to the upper third; SM2, limited to the middle third; SM3, limited to the lower third) was low (37.1%; 13/35), the accuracy in differentiation between < or = SMI (M and SMI) and > or = SM2 (SM2, SM3, MP, and S) was 85.7 % (30/35).
CONCLUSIONS
The miniprobe can be useful for therapeutic decision-making in submucosal invasive colorectal cancer.
背景与研究目的
最近，有报道称由于局部黏膜下浸润性结直肠癌发生淋巴结转移的情况罕见，可通过息肉切除术或内镜黏膜切除术（EMR）进行治疗。我们的目的是研究15兆赫超声微型探头在结直肠癌术前评估黏膜下浸润程度方面的准确性和有效性。
患者与方法
对35例行微型探头超声检查的黏膜下浸润性结直肠癌患者进行前瞻性研究。将该影像学检查结果与切除标本的组织学检查结果进行比较。
结果
尽管微型探头将黏膜下浸润分为三个亚类（SM1，浸润限于上三分之一；SM2，限于中三分之一；SM3，限于下三分之一）的准确性较低（37.1%；13/35），但区分≤SM1（M和SM1）与≥SM2（SM2、SM3、MP和S）的准确性为85.7%（30/35）。
结论
微型探头有助于黏膜下浸润性结直肠癌的治疗决策。
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